Where is the spot?

[Coach Bill]

NFHS rules. Side OB. The inbounder throws it high and wildly across the court to no one. It bounces once inbounds and before it lands out-of-bounds, his teammate steps on the sideline and taps it in an effort to to save it. The whistle is sounded for out-of-bounds. The other team's ball at what spot? The officials ruled back at the original spot because the player touched the line before touching the ball. Is this correct? Thanks.